User and installation manual
6 Electrical Connection
SMA Solar Technology AG
Installation Manual SBSxx-US-10-IA-xx-12 37
Procedure:
1.
DANGER
Danger to life due to electric shock
• Disconnect the inverter from all voltage sources (see Section8, page66).
2. Remove the sealing plugs from the network connection opening on the inverter.
3. Insert the conduit fitting into the opening and tighten from the inside using the counter nut.
4. Attach the conduit to the conduit fitting.
5. Lead one end of each network cable from the conduit into the inverter.
6. Put the network plug of each cable into one of the
network sockets of the communication assembly.
7. Ensure that the network connector is securely in place by pulling slightly on each cable.
8. Connect the other end of the network cable to the energy meter.
6.4 Connecting the Data Cable of the Battery and
Communication Cable of the Automatic Transfer
Switch
Connect the communication cable of each battery and, in battery-backup systems, the
communication cable of the automatic transfer switch as described in the following.
Communication between Inverter and Battery
• Communication between the inverter and the battery takes place via the battery
communication cable via CAN bus.
Additionally required material (not included in the scope of delivery):
☐ One battery communication cable for the communication between inverter and battery
☐ In battery-backup systems with automatic transfer switch: one communication cable between
inverter and automatic transfer switch
☐ If cables are routed in a conduit: conduit (trade size: 21mm (0.75in) or smaller with suitable
reducer bush)
☐ If cables are routed in a conduit: UL-listed raintight or liquidtight conduit fitting (trade size:
21mm (0.75in) or smaller with suitable reducer bush)
☐ If cables are used for outdoors: one waterproof cable gland
ENGLISH